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Influence of Design Parameters on Performance of SMRP Installed with Buckling Restrained Brace
Volume: 6.0
Issue: 5.0
Pages: 7.0 - 15.0
Buckling restrained brace (BRB) has been a popular earthquake resistant component due to ductility, stable hysteretic behavior, yielding in tension and compression and ease of post disaster assessment. In this paper, effects of core length of BRB on its performance, as an individual component, are studied using finite element model of BRB. Ansys Workbench 18.0 is used for modeling and analysis of the component. Microsoft Excel program for Design procedure of BRB is prepared and BRB capacities variation regarding variable aspect ratio (width to thickness ratio) is observed. Further, comparative study of G+9 storey RC frame (without infill walls) performance is conducted before and after installation of BRBs. Moreover, influence of BRB inclination is also studied. Seismic Performance of the building concerning time period of vibration and storey response is contemplated. Modeling and analysis of the structure is done using ETABS 2016. Study depicts that core length; aspect ratio and inclination are the most important design parameters governing BRB contribution in structural damping. Moreover, it is found that SMRF installed with BRBs show efficient performance concerning time period of vibration, besides storey responses, when subjected to dynamic loading and thus proving it to be an efficient lateral load resisting system.
About the journal
JournalInternational Journal of Emerging Technologies and Innovative Research
Open Access0